Life Span
Perennial
Perennial
Type
Flowering Plants
Grass
Origin
South-Central United States
Europe, Asia
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Blue Oat grass
Number of Varieties
200-
0
40000
👆🏻
Habitat
Rocky areas
Cropland, gardens, Grassland, Roadsides
USDA Hardiness Zone
5-84-9
0
99
👆🏻
AHS Heat Zone
12-1
-
Sunset Zone
No Available
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 15, 16, 17, 23, 24
Habit
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
30.00 cm20.50 cm
0
3900
👆🏻
Minimum Width
30.50 cm30.50 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Brown
Leaf Color in Spring
Green
Gray Green
Leaf Color in Summer
Green
Light Green
Leaf Color in Fall
Green
Dark Green
Leaf Color in Winter
-
Tan, Brown
Shape
Leaf Shape
Long linear and narrow
Grass like
Thorns
✔
✘
✔
✘
Plant Season
-
-
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam
Loam
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Late Spring
Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Does not require lot of watering, Water occasionally
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral
Soil Type
Loam
Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought
Drought
Flowers
Showy
-
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
-
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
-
Allergy
-
Asthma, Itchy eyes
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Arthritis, Headache, Stomach pain
Part of Plant Used
Flowers, Leaves
Whole plant
Other Uses
Showy Purposes, Used as Ornamental plant
Used as a nutritious food item
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Bedding Plant, Feature Plant, Groundcover
Botanical Name
PENSTEMON cobaea
ARRHENATHERUM
Common Name
Beardtongue
Oatgrass
In Hindi
Beardtongue
जई घास
In German
Bartfaden
Ährengras
In French
beardtongue
Folle avoine
In Spanish
beardtongue
oat Grass
In Greek
Beardtongue
βρώμη Grass
In Portuguese
Beardtongue
aveia-
In Polish
Beardtongue
Owies trawa
In Latin
ursus lingua
oat Grass
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
-
Class
Equisetopsida
Liliopsida
Order
Lamiales
Poales
Family
Scrophulariaceae
Poaceae
Genus
Penstemon
Danthonia
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
-
Aveneae
Subfamily
-
Danthonioideae
Number of Species
261450
1
27800
👆🏻